If you had more command line experience than you have I could use that as
a basis to provide some help. Now I'm going to explain something to you
and any other would-be new user of ubuntu on this list who doesn't have
much command line experience. In order to update anything with aptitude
or apt-get, you're going to have to use a text editor to modify
/etc/apt/sources.list. If you don't know your way around any of the text
editors you've just come to a full and complete stop. The reason it's
necessary to modify /etc/apt/sources.list is that out of the box, ubuntu
has all repositories listed in that file commented out. Those have to be
uncommented before any updating can get done. If you can work on a test
file first so anything done won't have system-wide consequences that would
be a good thing. ubuntu probably has ed available as a command. It's a
very simple text editor. If you can log in try typing man ed <enter> and
listen and learn. Then put a file together like this type these commands
in on gnome-terminal. To get to gnome-terminal type control-alt-f1. Now
test to see if you're in gnome-terminal and hit the backspace key. If you
hit it and your computer beeps repeatedly, you're in gnome-terminal and
can do things on a command line by just typing. Oh, once you get into
gnome-terminal type man ed <return> and listen. For the test file in
gnome-terminal type: echo "# deb" >>test.txt <return> echo "#rose"
test.txt echo "#deb-src" >>test.txt <return> There should have been a
<return> at the end of that second echo statement too. Okay now for the
exercise. Given what you've read, how might you change all lines in
test.txt beginning with #deb so they read deb? I'll give you a small hint
here; first type ed test.txt <return> in the gnome-terminal. Good luck.
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